A111758 - OEIS

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A111758

Number of bipartite connected outerplanar graphs on n unlabeled nodes.

2

1, 1, 1, 3, 4, 12, 24, 74, 193, 635, 1990, 6933, 24144, 88203, 326053, 1234735, 4732762, 18403211, 72282202, 286705378

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,4

LINKS

Table of n, a(n) for n=1..20.

M. Bordirsky, É. Fusy, M. Kang and S. Vigerske, Enumeration of Unlabeled Outerplanar Graphs, 2005

S. Vigerske, Asymptotic enumeration of unlabeled outerplanar graphs, Diploma thesis, Humboldt University Berlin, 2005

S. Vigerske, Homepage

CROSSREFS

Sequence in context: A070765 A000577 A333163 * A264484 A343163 A000942

Adjacent sequences: A111755 A111756 A111757 * A111759 A111760 A111761

KEYWORD

nonn

AUTHOR

Stefan Vigerske, Nov 21 2005

STATUS

approved